find the coordinates of the point (x,y) where the two given lines intersect
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Given,
-4x+7y=1
4x+y=23
adding both equation,
8y= 24, y = 3
substituting y in eq 2nd,
4x+3=23
4x=20
x=5
the coordinates of the point (x,y) where the two given lines intersect is (5,3)